Hi Lorenzo,
You are right. The proxy should send the request to the
user 3000 in the format you have shown. Proxies must not
modify the To header. The To header indicates the intended
target only. The final recepient of the request may be different
from that in the To header - as long as the Request-URI indicates
the recepient of the request, the call should be accepted. So
user 3000 should accept the call since it finds itself in the
Request-URI. You could refer Section 8.2.2.1 of the RFC that
discusses how a user agent should process the To/R-URI of
a request that it receives.Hope that helps. Subhash Nayak Hughes Software Systems http://www.hssworld.com "Boffelli, Lorenzo" <[EMAIL PROTECTED]> on 07/23/2003 09:28:17 PM To: [EMAIL PROTECTED] cc: "Sinigaglia, Luca" <[EMAIL PROTECTED]>, "Cordella, Marco" <[EMAIL PROTECTED]>, "Basili, Francesco" <[EMAIL PROTECTED]> (bcc: Subhash Ullal Nayak/HSSBLR) Subject: [Sip-implementors] Call Forward on busy Hello Suppose to have three sip users [EMAIL PROTECTED] located at host1.voip.net <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] located at host2.voip.net <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED] located at host3.voip.net All the sip users are registered at voip.net proxy providing the call forward on busy. If the user [EMAIL PROTECTED] is busy the proxy forward the call to the user [EMAIL PROTECTED] User [EMAIL PROTECTED] calls user [EMAIL PROTECTED] The invite sent by 1000 has the following haders: RequestURI: sip:[EMAIL PROTECTED] From: sip:[EMAIL PROTECTED] To: sip:[EMAIL PROTECTED] The proxy forwards the call to the user 2000 but it is busy so the proxy forwards the call to the user 3000 using the following headers: RequestURI: sip:[EMAIL PROTECTED] From: sip:[EMAIL PROTECTED] To: sip:[EMAIL PROTECTED] The proxy does not change the To header. Is this correct. Must the user 3000 accept the call even if the To header is not [EMAIL PROTECTED] Thank you Regards Lorenzo
|
Hello
Suppose to have three sip users
[EMAIL PROTECTED] located at
host1.voip.net
[EMAIL PROTECTED]
located at host2.voip.net
[EMAIL PROTECTED]
located at host3.voip.net
All
the sip users are registered at voip.net proxy providing the call forward on
busy.
If the
user [EMAIL PROTECTED] is busy the proxy forward
the call to the user [EMAIL PROTECTED]
User
[EMAIL PROTECTED] calls user [EMAIL PROTECTED]
The
invite sent by 1000 has the following haders:
RequestURI: sip:[EMAIL PROTECTED]
From: sip:[EMAIL PROTECTED]
The
proxy forwards the call to the user 2000 but it is busy so the proxy forwards
the call to the user 3000 using the following headers:
RequestURI: sip:[EMAIL PROTECTED]
From: sip:[EMAIL PROTECTED]
The
proxy does not change the To header. Is this correct. Must the user 3000 accept
the call even if the To header is not [EMAIL PROTECTED]?
Thank
you
Regards
Lorenzo |
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